Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandddtd » gbrandddtd, ggrandddtd, ghandddtd
band » bank, bond
rank » ranks, frank, bank
grants » migrants
ggain » gain
again » gain
grain » gmain, ggain, grail
brain » bmain, bgain, brail
rain » main, gain, rail

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((grant OR rank) OR (grandddtd OR (granted OR grants))) OR raw) OR (grain OR (ggain OR again))) OR ((brain OR gbgain) OR rain))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (band or bonds)) or (((((grant or rank) or (grandddtd or (granted or grants))) or raw) or (grain or (ggain OR again))) or ((brain or gbgain) or rain))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or bonds)) or (((((grant or rank) or (grandddtd or (granted or grants))) or raw) or (grain or (ggain OR again))) or ((brain or gbgain) or rain))) counterinsurgency study ;*.